JIPMER2004ChemistryElectrochemistry
Two metals 'A' and 'B' have E _ red ^ value equal to 0.36 V and 1.23 V . What will be the correct cell equation?
Options
- AA + B ²⁺ A ²⁺+ B
- BA ²⁺+ B A + B ²⁺
- CBoth (1) and (2)
- DNone of the above
Correct answer
A. A + B ²⁺ A ²⁺+ B
Step-by-step solution
From E_ red ^ . values, it is clear that A is more electropositive than B (as it has lesser E^ _ red ), hence it can replace B from its salt solution and act as anode in galvanic cell. Hence, correct cell equation will be: A+B²⁺ A²⁺+B